Interlock with safety

Details Interlock with safety Interlock with safety

1997-08-19

1999-04-27

Stinson, Frankie L.

Textiles: fluid treating apparatus

Machines

Single tub and automatic sequential operation mechanism

200 6162, 134 56DL, 134 57DL, 134 58DL, D06F 3728

Patent

active

058967591

ABSTRACT:
A mechanical coupling mechanism links an access door, a push-to-start button, and a switch controlling power to machinery behind the access door. The coupling mechanism permits the door to be open and the switch to be open, the door to be closed and the switch to be open, and the door to be closed and the switch to be closed, while forbidding the door to be open and the switch to be closed. The coupling precludes an operator shifting from a condition with the door open and the switch open to that in which the door is closed and the switch is closed with a single action.

REFERENCES:
patent: 3111830 (1963-11-01), Low
patent: 3285036 (1966-11-01), Erickson
patent: 3451233 (1969-06-01), Shopsky
patent: 3673824 (1972-07-01), Ripsco et al.
patent: 3735610 (1973-05-01), Haller
patent: 3763670 (1973-10-01), Harrold
patent: 5038587 (1991-08-01), Harmelink
patent: 5520026 (1996-05-01), Ackland
patent: 5600976 (1997-02-01), Hapke et al.

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